Table 3

RECIST, WHO and volume analyses from US and MR images of Gammex/UTHSCSA Mark 1 phantom

Design

Image RECIST and WHO (mean ± SD (% error))


US

MRI


RECIST (mm)

17.00

17.29 ± 0.08 (+1.73 ± 0.44%)

16.55 ± 0.64 (-2.65 ± 3.74%)

WHO (mm2)

149.00

141.93 ± 1.94 (-4.75 ± 1.30%)

137.73 ± 9.72 (-7.56 ± 6.52%)


Design

Image Volume (mean ± SD (% error))


US

MRI


Volume (mm3)

179.59 (7 mm sphere)

180.45 ± 7.51 (+0.48 ± 4.18%)

152.68 ± 30.81 (-14.99 ± 7.16%)

523.59 (10 mm sphere)

498.54 ± 12.60 (-4.78 ± 2.41%)

485.49 ± 31.68 (-7.28 ± 6.05%)


Mean ± standard deviation (SD) for three repeated measures and % errors in parenthesis are shown for RECIST, WHO and volume analysis. RECIST and WHO calculations were based on their definitions. For volume calculation, an equation V=π/6·a·b·c where a, b and c are diameters in three perpendicular dimensions was used.

Lee et al. BMC Medical Physics 2011 11:1   doi:10.1186/1756-6649-11-1

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